Screw-socket connection for radiators



F. F. FORSHEE. 4 SGREW SOCKET CONNECTION FOR RADIATORS.

APPLICATION FILED NOV .2 Q, I919. v

Patented Aug. 15, 1922;

INVENTOR Fra/M Ff'om/zee ATTO'RNEY WITNESS'ES: fiMd/rnm/ Wm 6M4IUNITEDQ'STATES PATENT orrica.

PRODUCTS COMPANY, A CORPORATION OF MICHIGAN.

SCREW-SOCKET CONNECTION FOR RADIATORS.

all whom it 'may concern:

' :Be it known that I, FRANK F. Fonsnnn, a citizen of the United States,and a resident of lint, in the county of Genesee and State of Michigan,have invented a new and useafullmprovement in Screw-Socket Connectionsfor Radiators, of which the following is a specification.

My invention relates to electric heating apparatus and particularly toradiant heaters, ,and it has for its object to provide a simple andinexpensive mounting for the heating element in apparatus of thecharacter designated.

In a preferred embodiment of my invention ,.I provide the reflector of aradiant mount therein a heater with a central axial opening andrearwardlv-extending, screw threaded collar. I rovi e also a cooperatingscrew-threaded clamping ring adapted to .be screwed over the outer endof the collar and to clamp the heating element in axial a-linement inproper position in the reflector.

Referring to the single sheet of drawings.

4 Figure 1 is a side elevational view, partly in section, of a radiantheater' embodying my invention, and Fig. 2 is a cross-sectional view, onan enlarged scale, of the particular device embodying my invention.

Referring particularly to Fig. 1, a radiant heater 1 comprises'asheet-metal reflector 2 of concave form, a projecting wire guard 3 and apair oi curved supporting arms 4,

the lower ends of which are joined and securel mounted on a. supportingbase 5. A suitable handle 6 is provided for use in movin the radiantheater when desired.

%he reflector 2 is provided with a centrall -located opening 7 and witha rear- A heating element 13 comprises a tubular Specification ofLetters Patent.

Patented Aug. 15, 1922.

Application filed November 20, 1919. Serial No. 339,287.

heater 14 which is secured to a terminal block 15 by means of a bolt 16andtnuts 17. A spacing member 18 is provided near ,the outer end of theheater 13 to aid in securing the heater in the desired axial alinementin the reflector 2. Standard contact terminals 19 are provided in theterminal block 15 to co-operate with a. standard socket member when itis desired to operate the radiant heater. A metal shell 20 is suitablysecured to the outer end of the terminal block 15, the outer portion ofthe shell 20 having a reduced diameter and being adapt.-

ed to co-operate with the portion 12 of the clamping ring 10, tomaintain the heater element 13 securely in position.

The heating element 13 maybe remove by unscrewing the clamping ring 10from the member 8. after which the complete heater 'unit may bewithdrawn rearwardl-y.

I thus provide a simple and inexpensive device for securing a heaterelement in a radiant heater, which will permit of easily and quicklyremoving a damaged heater and of inserting a new one.

Various changes may be made without. departing from the spirit and scopeof my invention. and I desire that only such limitations shall be placedthereon as are imposed by the prior art or as are specifically set forthin the appended claims.

I claim as my invention:

1. In an electric radiator, the combination with a reflector having anaxial opening and a rearwardly removable unitary heating element inaxial alinement in said reflector said heating element comprising arearwardly-extending terminal block and a forwardly-extending heater, ofrearwardlyextending means secured to said reflector in said opening andhaving a portion provided with screw threads coaxial therewith forholding said heating element in axial alinement.

2. In an electric radiator, the combination with a reflector having anaxial opening and a unitary heating element in axial alinement in saidreflector'oomprising a rearwardly-extending terminal block and aforwardly-exten'ding heater, of rearwardly1 extending means secured tosaid refiectorqn axial alinement with said opening and having a portionprovided with screw threads coaxial with said opening for holding saidheating element in axial alinement.

3. In an electric radiator, the combination with a reflector having anaxial opening, a heating element extending forwardly of said reflectorin axial alinement therewith, and a rearwardly-extending terminal blockpermanently secured to said heating element, of a rearwardly-extendingtwo-part screwthreaded tubular holder secured to said reflector in axialalinement with said opening for holding said terminal block.

4. In an electric radiator, the combination with a reflector having anaxial opening therein, a rearwardly-extending threaded collar in axialalinement with-said opening, and aforwardl -extending heating elementhaving a dou le frusto-conical terminal block, of a threaded annularclamping member co-operating with said collar' to hold said heatingelement in axial alinement in said reflector. 4

5. In an electrical heating apparatus, the

combination with a reflector having a central o ening therein, arearwardly-extending threa ed collar secured to'said reflector in axialalinement with said opening, and a heater unit comprising a terminalblock, a heater element axially alined with said block and a rod formaintaining said axial alinement of the tubular heater element with saidterminal block, of a clamping member cooperating with said collar forholding said heater unit in position.

6. In an electrical heating apparatus, the combination with a reflectorhaving an axial opening therein, a rearwardly-extending threaded tubularholder secured to said reflector in axial alinement with said opening,and a rearwardly-removable heater unit comprising a terminal block, anda heater element secured to said terminal block in axial alinementtherewith, of a threaded retaining collar mounted on said tubular holderfor holding said terminal block,

7. In an electric radiator, in combination, a reflector having an axialopening, a rearwardly removable unitary heating element axially alinedin said reflector,,said heatin element comprising a terminal block and aheater extending forwardly of said terminal block, and means secured tosaid reflector in said opening and having a portion provided with screwthreads coaxial therewith for holding said heating element in axialalinement.

8. In an electric radiator, in combination. a reflector having an axialopening, a nnitary heating element in axial alincment in said reflectorcomprising a terminal block and a forwardly extending heater, and meanssecured to said reflector in, axial alinement with said opening andhaving a portion provided with scrcw-thrcudcd means coaxial with saidopening for holding Said heating element in axial alincment.

In testimony whereof, I have hereunto subscribed. my name this (3th dayof Novcm her, 1919.

FRANK l. ronsnnm.

